arch/powerpc/boot/treeboot-bamboo.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright IBM Corporation, 2007
   4  * Josh Boyer <jwboyer@linux.vnet.ibm.com>
   5  *
   6  * Based on ebony wrapper:
   7  * Copyright 2007 David Gibson, IBM Corporation.
   8  */
   9 #include "ops.h"
  10 #include "stdio.h"
  11 #include "44x.h"
  12 #include "stdlib.h"
  13
  14 BSS_STACK(4096);
  15
  16 #define PIBS_MAC0 0xfffc0400
  17 #define PIBS_MAC1 0xfffc0500
  18 char pibs_mac0[6];
  19 char pibs_mac1[6];
  20
  21 static void read_pibs_mac(void)
  22 {
  23         unsigned long long mac64;
  24
  25         mac64 = strtoull((char *)PIBS_MAC0, 0, 16);
  26         memcpy(&pibs_mac0, (char *)&mac64+2, 6);
  27
  28         mac64 = strtoull((char *)PIBS_MAC1, 0, 16);
  29         memcpy(&pibs_mac1, (char *)&mac64+2, 6);
  30 }
  31
  32 void platform_init(void)
  33 {
  34         unsigned long end_of_ram = 0x8000000;
  35         unsigned long avail_ram = end_of_ram - (unsigned long)_end;
  36
  37         simple_alloc_init(_end, avail_ram, 32, 64);
  38         read_pibs_mac();
  39         bamboo_init((u8 *)&pibs_mac0, (u8 *)&pibs_mac1);
  40 }